拓展五孔探针测量范围的分区方法  

Zonal Method for Extending Measurement Range of Five-Hole Probe

作　　者：陆华伟 王龙 路子平 郭爽 孔晓治 Lu Huawei;Wang Long;Lu Ziping;Guo Shuang;Kong Xiaozhi(Naval Architecture and Ocean Engineering College,Dalian Maritime University,Dalian 116026,China;Marine Engineering College,Dalian Maritime University,Dalian 116026,China;AECC Commercial Aircraft Engine Co.,Ltd.,Shanghai 201100,China;School of Energy and Power Engineering,Dalian University of Technology,Dalian 116026,China)

机构地区：[1]大连海事大学船舶与海洋工程学院,辽宁大连116026 [2]大连海事大学轮机工程学院,辽宁大连116026 [3]中国航发商用航空发动机有限责任公司,上海201100 [4]大连理工大学能源与动力工程学院,辽宁大连116026

出　　处：《气动研究与试验》2024年第6期47-56,共10页Aerodynamic Research & Experiment

摘　　要：高速高负荷的压气机叶栅中存在着强烈的三维流动,在这种情况下,五孔探针常用的测量原理会因出现奇异性问题而不再适用。类比七孔探针的测量原理,五孔探针采用分区方法,拓宽其测量范围。分区方法的实质仍与常用方法的一致,只是在各个分区内替换了更合适的速压,保证了物理意义上的一致性和合理性。在拓展区域,方向角的定义与常用方法的不同,但是可以相互转换。通过对比两种方法在进口马赫数为0.67的高负荷扩压叶栅的出口截面处的结果,发现分区方法对角区的角度和静压的测量更为准确,测得的最大的角度为-40.95o;对于总压的测量,两者比较一致。There is a strong three-dimensional flow in a compressor cascade with high speed and high load.In this case,the commonly used measurement principle of five-hole probe is no longer applicable due to singularity problems.By analogy with the measuring principle of seven-hole probe,five-hole probe adopts the zonal method to broaden its measuring range.The essence of the zonal method is still the same as that of the commonly used method.The difference is that more suitable dynamic pressure is replaced in each partition,which ensures the consistency and rationality in the physical sense.In the expansion area,the definition of the direction angle is different from the usual method,but they can be converted to each other.By comparing the results of the two methods at the outlet section of the highly-loaded compressor cascade with an inlet Mach number of 0.67,it is found that the measurement of the angle and static pressure of the corner by the zonal method is more accurate,and the maximum measured angle is-40.95°,and for the measurement of total pressure,the two methods have relatively consistent results.

关 键 词：五孔探针 三维流场测试 标定试验 流动分离 

分 类 号：V211.7[航空宇航科学与技术—航空宇航推进理论与工程]